Back in the brief window of time during which Newt Gingrich appeared to pose a threat to Mitt Romney’s candidacy, I spent a fair bit of time following him around Florida, crisscrossing suburbanized I–4, listening to Gingrich promote futuristic visions of space exploration and bemoaning the barrage of negative TV ads. Newt let things get to his head a little after his upset win in South Carolina; beyond overambitious pledges to build a moon colony by 2020, Gingrich began envisioning himself in the White House, spending more time talking about how he needed to have a Republican Congress alongside him rather than the urgent need to displace Romney.